664818064

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{1340359}}^1$

素因数の和:1340398

約数の個数: 20

約数和(自身を含む): 1329637120

約数和(自身を除く): 664819056

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 1340359, 2680718, 5361436, 10722872, 21445744, 41551129, 83102258, 166204516, 332409032, 664818064]

約数ペア:

[(1, 664818064), (2, 332409032), (4, 166204516), (8, 83102258), (16, 41551129), (31, 21445744), (62, 10722872), (124, 5361436), (248, 2680718), (496, 1340359)]